/* | |
* Copyright (C) 1999 Lars Knoll (knoll@kde.org) | |
* Copyright (C) 2004, 2005, 2006, 2009 Apple Inc. All rights reserved. | |
* | |
* This library is free software; you can redistribute it and/or | |
* modify it under the terms of the GNU Library General Public | |
* License as published by the Free Software Foundation; either | |
* version 2 of the License, or (at your option) any later version. | |
* | |
* This library is distributed in the hope that it will be useful, | |
* but WITHOUT ANY WARRANTY; without even the implied warranty of | |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
* Library General Public License for more details. | |
* | |
* You should have received a copy of the GNU Library General Public License | |
* along with this library; see the file COPYING.LIB. If not, write to | |
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, | |
* Boston, MA 02110-1301, USA. | |
* | |
*/ | |
#ifndef RenderWidget_h | |
#define RenderWidget_h | |
#include "OverlapTestRequestClient.h" | |
#include "RenderReplaced.h" | |
namespace WebCore { | |
class Widget; | |
class RenderWidget : public RenderReplaced, private OverlapTestRequestClient { | |
public: | |
virtual ~RenderWidget(); | |
Widget* widget() const { return m_widget.get(); } | |
virtual void setWidget(PassRefPtr<Widget>); | |
static RenderWidget* find(const Widget*); | |
void updateWidgetPosition(); | |
void widgetPositionsUpdated(); | |
IntRect windowClipRect() const { return m_windowClipRect; } | |
void showSubstituteImage(PassRefPtr<Image>); | |
static void suspendWidgetHierarchyUpdates(); | |
static void resumeWidgetHierarchyUpdates(); | |
protected: | |
RenderWidget(Node*); | |
FrameView* frameView() const { return m_frameView; } | |
void clearWidget(); | |
virtual void styleDidChange(StyleDifference, const RenderStyle* oldStyle); | |
virtual void layout(); | |
virtual void paint(PaintInfo&, int x, int y); | |
private: | |
virtual bool isWidget() const { return true; } | |
virtual void destroy(); | |
virtual void setSelectionState(SelectionState); | |
virtual bool nodeAtPoint(const HitTestRequest&, HitTestResult&, int x, int y, int tx, int ty, HitTestAction); | |
virtual void setOverlapTestResult(bool); | |
bool setWidgetGeometry(const IntRect&); | |
friend class RenderWidgetProtector; | |
RenderArena* ref() { ++m_refCount; return renderArena(); } | |
void deref(RenderArena*); | |
RefPtr<Widget> m_widget; | |
RefPtr<Image> m_substituteImage; | |
FrameView* m_frameView; | |
IntRect m_windowClipRect; | |
int m_refCount; | |
}; | |
inline RenderWidget* toRenderWidget(RenderObject* object) | |
{ | |
ASSERT(!object || object->isWidget()); | |
return static_cast<RenderWidget*>(object); | |
} | |
inline const RenderWidget* toRenderWidget(const RenderObject* object) | |
{ | |
ASSERT(!object || object->isWidget()); | |
return static_cast<const RenderWidget*>(object); | |
} | |
// This will catch anyone doing an unnecessary cast. | |
void toRenderWidget(const RenderWidget*); | |
} // namespace WebCore | |
#endif // RenderWidget_h |